
import java.io.File;
import javax.swing.JFileChooser;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author pc
 */
public class FolderChooserUI extends javax.swing.JFrame {

    /**
     * Creates new form FolderChooserUI
     */
    public FolderChooserUI() {
        initComponents();
    }
    private void OpenActionPerformed(java.awt.event.ActionEvent evt) {
    int returnVal = jFileChooser1.showOpenDialog(this);
    if (returnVal == JFileChooser.APPROVE_OPTION) {
        File file = jFileChooser1.getSelectedFile();
       /* try {
          // display it in a TextArea
          jTextArea1.read( new FileReader( file.getAbsolutePath() ), null );
        } catch (IOException ex) {
          System.out.println("problem accessing file"+file.getAbsolutePath());
        }*/
    } else {
        System.out.println("File access cancelled by user.");
    }
    } 

    void setVisibility(boolean b) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
    class MyCustomFilter extends javax.swing.filechooser.FileFilter {
        @Override
        public boolean accept(File file) {
            // Allow only directories, or files with ".txt" extension
            return file.isDirectory() || file.getAbsolutePath().endsWith(".");
        }
        @Override
        public String getDescription() {
            // This description will be displayed in the dialog,
            // hard-coded = ugly, should be done via I18N
            return "Text documents (*.txt)";
        }
    } 
    
    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jFileChooser1 = new javax.swing.JFileChooser();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jFileChooser1.setDialogTitle("This is my open dialog");
        jFileChooser1.setFileFilter(new MyCustomFilter());
        jFileChooser1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jFileChooser1ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jFileChooser1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(0, 0, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jFileChooser1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jFileChooser1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jFileChooser1ActionPerformed

    }//GEN-LAST:event_jFileChooser1ActionPerformed

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(FolderChooserUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(FolderChooserUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(FolderChooserUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(FolderChooserUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new FolderChooserUI().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JFileChooser jFileChooser1;
    // End of variables declaration//GEN-END:variables
}
